Now we have a new TAB on the Bottom where you can view your meetings for the day and the next day which is very welcome as previously we only had the Top TAB showing the current meeting and only during the real meeting time.

A list of my meetings (currently without any Lync Online Meeting)

Also very handy, you can now join meetings anonymously whithout requiring credentials on the corporate network so you can invite external participants on Windows 8

Obviously you go to the Lobby when joining anonymously

If you are a presenter then you can privately browse powerpoint slides